120420136056 has 48 divisors (see below), whose sum is σ = 330906580200. Its totient is φ = 36490949440.

The previous prime is 120420136019. The next prime is 120420136103. The reversal of 120420136056 is 650631024021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20730591 + ... + 20736398.

Almost surely, 2^120420136056 is an apocalyptic number.

It is an amenable number.

120420136056 is an abundant number, since it is smaller than the sum of its proper divisors (210486444144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120420136056 is a wasteful number, since it uses less digits than its factorization.

120420136056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41467020 (or 41467005 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 120420136056 in words is "one hundred twenty billion, four hundred twenty million, one hundred thirty-six thousand, fifty-six".